Install Relay

Please see the Mercury Relay Advisory regarding the manufacturer's published limitations on mercury relays.

Complete the following steps to install the relay (mercury or solid state relay).

  1. Identify the most suitable location and connection points for installing the relay. This may be in the secondary AC circuit, the DC positive (+) output, or DC negative (–) output.

  2. Mount the relay on a suitable surface.

    If you are installing the mercury relay, the relay functions with a contact in a pool of mercury, therefore making orientation of the relay important. Ensure that the relay is mounted in a vertical position (within 10 degrees from vertical) so that the writing on the relay is upright and readable.

  3. Connect the appropriate cable for the load being switched, from the copper connectors on the bottom and top of the relay, to the connections points used earlier.

  4. Connect relay wires in the Switch Out connector on the RM4010, RM4011, RM4014, RM4014S, or RM4015 (positive to positive; negative to negative).